Dictionary

refractive index

noun

Definition of REFRACTIVE INDEX

:  the ratio of the speed of radiation (as light) in one medium (as air, glass, or a vacuum) to that in another medium

First Known Use of REFRACTIVE INDEX

1839
Medical Dictionary

refractive index

noun

Medical Definition of REFRACTIVE INDEX

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2 ENTRIES FOUND:
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July 04, 2015
stringent Hear it
rigorous, strict, or severe
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